diff --git a/Gemfile b/Gemfile
index 7ef5dae..fa23bda 100644
--- a/Gemfile
+++ b/Gemfile
@@ -16,6 +16,7 @@
 # ------------------------------------------------
 #    DATABASE/SERVER
 gem 'pg'
+gem 'mysql2', '~> 0.3.18'
 
 # ------------------------------------------------
 #    JS <-> RUBY BRIDGE
diff --git a/Gemfile.lock b/Gemfile.lock
index 57b32ca..b71d100 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -203,6 +203,7 @@
       ruby-progressbar
     multi_json (1.12.1)
     multipart-post (2.0.0)
+    mysql2 (0.3.21)
     nokogiri (1.6.8)
       mini_portile2 (~> 2.1.0)
       pkg-config (~> 1.1.7)
@@ -343,6 +344,7 @@
   libv8
   minitest-rails-capybara
   minitest-reporters
+  mysql2 (~> 0.3.18)
   omniauth
   omniauth-shibboleth
   pg